31257915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1021}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 54255936

約数和(自身を除く): 22998021

約数列:

[1, 3, 5, 13, 15, 39, 65, 157, 195, 471, 785, 1021, 2041, 2355, 3063, 5105, 6123, 10205, 13273, 15315, 30615, 39819, 66365, 160297, 199095, 480891, 801485, 2083861, 2404455, 6251583, 10419305, 31257915]

約数ペア:

[(1, 31257915), (3, 10419305), (5, 6251583), (13, 2404455), (15, 2083861), (39, 801485), (65, 480891), (157, 199095), (195, 160297), (471, 66365), (785, 39819), (1021, 30615), (2041, 15315), (2355, 13273), (3063, 10205), (5105, 6123)]